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Report on Zhupanovsky (Russia) — 18 June-24 June 2014

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 18 June-24 June 2014
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2014. Report on Zhupanovsky (Russia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 18 June-24 June 2014. Smithsonian Institution and US Geological Survey.

Volcano Profile |  Weekly Report (18 June-24 June 2014)


Zhupanovsky

Russia

53.589°N, 159.15°E; summit elev. 2899 m

All times are local (unless otherwise noted)


KVERT reported that, during 14-19 June, satellite images over Zhupanovsky detected gas-and-steam plumes with discrete ash plumes up to 4.5 km (14,800 ft) a.s.l. drifting up to 70 km SE and NW from the volcano. Satellite images detected a thermal anomaly on 14-15 and 17-19 June. The Aviation Color Code was raised from Yellow to Orange.

Tokyo VAAC reported ash plumes during 18-20 June drifting NW and later NE. Plume heights were in range of 3,000-8,500 m (9,800-28,000 ft) a.s.l.

Geologic Background. The Zhupanovsky volcanic massif consists of four overlapping stratovolcanoes along a WNW-trending ridge. The elongated volcanic complex was constructed within a Pliocene-early Pleistocene caldera whose rim is exposed only on the eastern side. Three of the stratovolcanoes were built during the Pleistocene, the fourth is Holocene in age and was the source of all of Zhupanovsky's historical eruptions. An early Holocene stage of frequent moderate and weak eruptions from 7000 to 5000 years before present (BP) was succeeded by a period of infrequent larger eruptions that produced pyroclastic flows. The last major eruption took place about 800-900 years BP. Historical eruptions have consisted of relatively minor explosions from the third cone.

Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Tokyo Volcanic Ash Advisory Center (VAAC)